Dec 19 10:53:48.613 INFO checking pixlark/rust-2048 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 10:53:48.613 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/pixlark/rust-2048:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:53:49.352 INFO [stdout] 14c9e5e04189affa99af4bcab4d654a9746b46a595394d0e2a5f4945b247299e
Dec 19 10:53:49.354 INFO running `"docker" "start" "-a" "14c9e5e04189affa99af4bcab4d654a9746b46a595394d0e2a5f4945b247299e"`
Dec 19 10:53:51.366 INFO [stderr]    Compiling game-2048 v0.1.0 (/opt/crater/workdir)
Dec 19 10:53:51.369 INFO [stderr]     Checking rand v0.6.1
Dec 19 10:53:51.369 INFO [stderr]     Checking sdl2 v0.31.0
Dec 19 10:53:57.908 INFO [stderr] warning: unused import: `sdl2::video::WindowContext`
Dec 19 10:53:57.908 INFO [stderr]   --> src/main.rs:15:5
Dec 19 10:53:57.908 INFO [stderr]    |
Dec 19 10:53:57.908 INFO [stderr] 15 | use sdl2::video::WindowContext;
Dec 19 10:53:57.908 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:53:57.908 INFO [stderr]    |
Dec 19 10:53:57.908 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 10:53:57.908 INFO [stderr] 
Dec 19 10:53:57.920 INFO [stderr] warning: unused import: `sdl2::video::WindowContext`
Dec 19 10:53:57.920 INFO [stderr]   --> src/main.rs:15:5
Dec 19 10:53:57.920 INFO [stderr]    |
Dec 19 10:53:57.920 INFO [stderr] 15 | use sdl2::video::WindowContext;
Dec 19 10:53:57.920 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:53:57.920 INFO [stderr]    |
Dec 19 10:53:57.920 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 10:53:57.920 INFO [stderr] 
Dec 19 10:53:58.029 INFO [stderr] warning: use of deprecated item 'rand::Rng::choose': use SliceRandom::choose instead
Dec 19 10:53:58.029 INFO [stderr]    --> src/main.rs:267:32
Dec 19 10:53:58.029 INFO [stderr]     |
Dec 19 10:53:58.029 INFO [stderr] 267 |         let choice: u64 = *rng.choose(&[2, 4]).unwrap();
Dec 19 10:53:58.030 INFO [stderr]     |                                ^^^^^^
Dec 19 10:53:58.030 INFO [stderr]     |
Dec 19 10:53:58.030 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 19 10:53:58.030 INFO [stderr] 
Dec 19 10:53:58.064 INFO [stderr] warning: unused variable: `state_stack`
Dec 19 10:53:58.064 INFO [stderr]    --> src/main.rs:306:13
Dec 19 10:53:58.064 INFO [stderr]     |
Dec 19 10:53:58.064 INFO [stderr] 306 |     let mut state_stack: Vec<Box<dyn GameState>> = Vec::new();
Dec 19 10:53:58.064 INFO [stderr]     |             ^^^^^^^^^^^ help: consider using `_state_stack` instead
Dec 19 10:53:58.064 INFO [stderr]     |
Dec 19 10:53:58.064 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 10:53:58.064 INFO [stderr] 
Dec 19 10:53:58.092 INFO [stderr] warning: variable does not need to be mutable
Dec 19 10:53:58.092 INFO [stderr]    --> src/main.rs:306:9
Dec 19 10:53:58.092 INFO [stderr]     |
Dec 19 10:53:58.092 INFO [stderr] 306 |     let mut state_stack: Vec<Box<dyn GameState>> = Vec::new();
Dec 19 10:53:58.092 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 19 10:53:58.092 INFO [stderr]     |         |
Dec 19 10:53:58.092 INFO [stderr]     |         help: remove this `mut`
Dec 19 10:53:58.092 INFO [stderr]     |
Dec 19 10:53:58.092 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 10:53:58.092 INFO [stderr] 
Dec 19 10:53:58.092 INFO [stderr] warning: struct is never constructed: `PlayingState`
Dec 19 10:53:58.092 INFO [stderr]    --> src/main.rs:286:1
Dec 19 10:53:58.092 INFO [stderr]     |
Dec 19 10:53:58.092 INFO [stderr] 286 | struct PlayingState {
Dec 19 10:53:58.092 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Dec 19 10:53:58.092 INFO [stderr]     |
Dec 19 10:53:58.092 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 10:53:58.092 INFO [stderr] 
Dec 19 10:53:58.095 INFO [stderr] warning: type `v2` should have a camel case name such as `V2`
Dec 19 10:53:58.095 INFO [stderr]   --> src/main.rs:44:1
Dec 19 10:53:58.095 INFO [stderr]    |
Dec 19 10:53:58.095 INFO [stderr] 44 | / struct v2 {
Dec 19 10:53:58.095 INFO [stderr] 45 | |     row: i32,
Dec 19 10:53:58.095 INFO [stderr] 46 | |     column: i32,
Dec 19 10:53:58.095 INFO [stderr] 47 | | }
Dec 19 10:53:58.095 INFO [stderr]    | |_^
Dec 19 10:53:58.095 INFO [stderr]    |
Dec 19 10:53:58.095 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 19 10:53:58.095 INFO [stderr] 
Dec 19 10:53:58.095 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:53:58.095 INFO [stderr]    --> src/main.rs:159:21
Dec 19 10:53:58.095 INFO [stderr]     |
Dec 19 10:53:58.095 INFO [stderr] 159 | /                     canvas.copy(
Dec 19 10:53:58.095 INFO [stderr] 160 | |                         &texture,
Dec 19 10:53:58.095 INFO [stderr] 161 | |                         None,
Dec 19 10:53:58.095 INFO [stderr] 162 | |                         Some(Rect::new(
Dec 19 10:53:58.095 INFO [stderr] ...   |
Dec 19 10:53:58.095 INFO [stderr] 167 | |                         )),
Dec 19 10:53:58.095 INFO [stderr] 168 | |                     );
Dec 19 10:53:58.095 INFO [stderr]     | |______________________^
Dec 19 10:53:58.095 INFO [stderr]     |
Dec 19 10:53:58.095 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 10:53:58.095 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:53:58.095 INFO [stderr] 
Dec 19 10:53:58.132 INFO [stderr] warning: use of deprecated item 'rand::Rng::choose': use SliceRandom::choose instead
Dec 19 10:53:58.132 INFO [stderr]    --> src/main.rs:267:32
Dec 19 10:53:58.132 INFO [stderr]     |
Dec 19 10:53:58.132 INFO [stderr] 267 |         let choice: u64 = *rng.choose(&[2, 4]).unwrap();
Dec 19 10:53:58.132 INFO [stderr]     |                                ^^^^^^
Dec 19 10:53:58.140 INFO [stderr]     |
Dec 19 10:53:58.140 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 19 10:53:58.140 INFO [stderr] 
Dec 19 10:53:58.236 INFO [stderr] warning: unused variable: `state_stack`
Dec 19 10:53:58.236 INFO [stderr]    --> src/main.rs:306:13
Dec 19 10:53:58.236 INFO [stderr]     |
Dec 19 10:53:58.236 INFO [stderr] 306 |     let mut state_stack: Vec<Box<dyn GameState>> = Vec::new();
Dec 19 10:53:58.236 INFO [stderr]     |             ^^^^^^^^^^^ help: consider using `_state_stack` instead
Dec 19 10:53:58.236 INFO [stderr]     |
Dec 19 10:53:58.237 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 10:53:58.237 INFO [stderr] 
Dec 19 10:53:58.278 INFO [stderr] warning: variable does not need to be mutable
Dec 19 10:53:58.278 INFO [stderr]    --> src/main.rs:306:9
Dec 19 10:53:58.278 INFO [stderr]     |
Dec 19 10:53:58.278 INFO [stderr] 306 |     let mut state_stack: Vec<Box<dyn GameState>> = Vec::new();
Dec 19 10:53:58.278 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 19 10:53:58.278 INFO [stderr]     |         |
Dec 19 10:53:58.278 INFO [stderr]     |         help: remove this `mut`
Dec 19 10:53:58.278 INFO [stderr]     |
Dec 19 10:53:58.278 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 10:53:58.278 INFO [stderr] 
Dec 19 10:53:58.280 INFO [stderr] warning: struct is never constructed: `PlayingState`
Dec 19 10:53:58.280 INFO [stderr]    --> src/main.rs:286:1
Dec 19 10:53:58.280 INFO [stderr]     |
Dec 19 10:53:58.280 INFO [stderr] 286 | struct PlayingState {
Dec 19 10:53:58.280 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Dec 19 10:53:58.281 INFO [stderr]     |
Dec 19 10:53:58.281 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 10:53:58.281 INFO [stderr] 
Dec 19 10:53:58.282 INFO [stderr] warning: type `v2` should have a camel case name such as `V2`
Dec 19 10:53:58.282 INFO [stderr]   --> src/main.rs:44:1
Dec 19 10:53:58.282 INFO [stderr]    |
Dec 19 10:53:58.282 INFO [stderr] 44 | / struct v2 {
Dec 19 10:53:58.282 INFO [stderr] 45 | |     row: i32,
Dec 19 10:53:58.282 INFO [stderr] 46 | |     column: i32,
Dec 19 10:53:58.282 INFO [stderr] 47 | | }
Dec 19 10:53:58.282 INFO [stderr]    | |_^
Dec 19 10:53:58.282 INFO [stderr]    |
Dec 19 10:53:58.282 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Dec 19 10:53:58.282 INFO [stderr] 
Dec 19 10:53:58.283 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 10:53:58.283 INFO [stderr]    --> src/main.rs:159:21
Dec 19 10:53:58.283 INFO [stderr]     |
Dec 19 10:53:58.283 INFO [stderr] 159 | /                     canvas.copy(
Dec 19 10:53:58.283 INFO [stderr] 160 | |                         &texture,
Dec 19 10:53:58.283 INFO [stderr] 161 | |                         None,
Dec 19 10:53:58.283 INFO [stderr] 162 | |                         Some(Rect::new(
Dec 19 10:53:58.283 INFO [stderr] ...   |
Dec 19 10:53:58.283 INFO [stderr] 167 | |                         )),
Dec 19 10:53:58.283 INFO [stderr] 168 | |                     );
Dec 19 10:53:58.283 INFO [stderr]     | |______________________^
Dec 19 10:53:58.283 INFO [stderr]     |
Dec 19 10:53:58.283 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 10:53:58.283 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 10:53:58.283 INFO [stderr] 
Dec 19 10:53:58.316 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.07s
Dec 19 10:53:59.442 INFO running `"docker" "inspect" "14c9e5e04189affa99af4bcab4d654a9746b46a595394d0e2a5f4945b247299e"`
Dec 19 10:53:59.910 INFO running `"docker" "rm" "-f" "14c9e5e04189affa99af4bcab4d654a9746b46a595394d0e2a5f4945b247299e"`
Dec 19 10:54:00.236 INFO [stdout] 14c9e5e04189affa99af4bcab4d654a9746b46a595394d0e2a5f4945b247299e